Comparison Porsche 911 Cabriolet (991) Turbo 3.8 (520 Hp) PDK & GMC Yukon XL II (GMT800) 2500 6.0 V8 (315 Hp) Automatic
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| Brand: | Porsche | GMC |
| Model: | 911 | Yukon |
| Generation: | 911 Cabriolet (991) | Yukon XL II (GMT800) |
| Engine / modification: | Turbo 3.8 (520 Hp) PDK | 2500 6.0 V8 (315 Hp) Automatic |
| Production start: | 2013 year | 2000 year |
| Production end: | 2016 year | 2006 year |
| Coupe type: | Cabriolet | Off-road vehicle |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 2+2 | 5-9 |
| Fuel consumption / economy - urban: | 13.4 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.8 l/100 km | |
| Fuel consumption / economy - combined: | 9.9 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | |
| Fuel tank volume: | 68 l | 146 l |
| Emission standard: | Euro 6 | |
| CO2 emissions: | 231 g/km | |
| Power: | 520 hp | 315 hp |
| Max power in: | 6000-6500 rpm. | 5000 rpm. |
| Maximum speed: | 315 km/h | |
| Acceleration from 0 to 100 km/h: | 3.5 sec | |
| Torque: | 660 Nm @ 1950-5000 rpm. | 481 Nm @ 4000 rpm. |
| Model Engine: | MA1.71 | |
| Engine position: | Rear, longitudinal | Front, longitudinal |
| Engine displacement: | 3800 cm3 | 5967 cm3 |
| Engine oil capacity: | 7.5 l | 5.7 l |
| Coolant: | 15.3 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Twin-Turbo | |
| Position of cylinders: | Boxer | V engine |
| Valvetrain: | - | |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 9.8 | 9.4 |
| Piston Stroke: | 77.5 mm | 92 mm |
| Cylinder Bore: | 102 mm | 101.6 mm |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 7 PDK | 4 |
| Length: | 4506 mm | 5570 mm |
| Width: | 1880 mm | 2002 mm |
| Height: | 1292 mm | 1923 mm |
| Wheelbase: | 2450 mm | 3302 mm |
| Front track: | 1541 mm | 1651 mm |
| Rear (Back) track: | 1590 mm | 1676 mm |
| Minimum volume of Luggage (trunk): | 275 l | 1294 l |
| Maximum amount of Luggage (trunk): | 3726 l | |
| Front suspension: | Independent type McPherson | Helical spring |
| Rear suspension: | Multi-link independent | Helical spring |
| Max weight: | 2045 kg | 3900 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Disc | |
| Kerb Weight: | 1665 kg | 2310 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | Hydraulic Steering |
| Minimum turning circle (turning diameter): | 10.4 m | |
| Tire size: | 245/35 ZR20; 305/30 ZR20 | 245/75 R16 |
| Wheel rims size: | 8.5J x 20; 11J x 20 | 7J x 16 |